Page 512 of 801

YH4
GRAND
VITARA
7E-10 DIFFERENTIAL (FRONT)
1. Plugged hose
2. Adjusting screw
3. Pipe (to air pump assembly)
4. Hose (to differential carrier)
5. Differential housing
4 5
INSPECTION
4WD Control System
1) Install special tool to air hose connecting between air pump as-
sembly and differential (actuator) as shown in figure. Tighten ad-
justing screw of special tool as far as it stops. Close air check
side opening by using fuel hose as blind plug.
Special Tool
(A): 09918-18110
(B): 09367-04002
NOTE:
Use care not to bend any part of hose.
2) Turn ON ignition switch and shift transfer lever from 2H to 4H
range.
3) Check that motor starts running (a sound can be heard) within
1 second and it stops when gauge of special tool indicates speci-
fied pressure value.
Check also for air leakage.
Pressure specification:
30.0 ± 45.0 kPa (0.30 ± 0.45 kg / cm
2, 4.25 ± 6.40 psi)
4) Check that pressure value indicated on gauge of special tool
drops as soon as transfer lever is shifted to 2H position.
5) Start motor by shifting transfer lever to 4H position again. Loos-
en adjusting screw to lower pressure value on gauge. Motor
should start to run again and stop in about 4 seconds.
6) With the adjusting screw of special tool loosened, shift transfer
shift lever to N or 2H position and then 4L or 4H position.
Pump motor should stop about 10 seconds after motor starts to
run.
Page 513 of 801

YH4
GRAND
VITARA
DIFFERENTIAL (FRONT) 7E-11
1. Differential housing
2. Adjusting screw
3. To air compressor
Actuator
1) Disconnect air hose from pump assembly and install special tool
to air hose as shown in figure. Loosen adjusting screw of special
tool.
Special Tool
(A): 09918-18110
2) Connect compressor air hose to special tool.
Blow air and turn adjusting screw to obtain specified pressure.
Specified pressure: 30.0 kPa (0.3 kg / cm
2, 4.25 psi)
CAUTION:
Do not apply a pressure exceeding 200 kPa (2.0 kg / cm
2,
28.4 psi) which may cause damage to diaphragm.
3) With the vehicle lifted so that both of the front wheels are off the
ground, turn one of the front wheels by hand and check the other
wheel, which should act as described below.
When the pressure from compressor is applied to actuator:
The other front wheel should turn in the direction opposite to
the wheel being turned by hand.
When the pressure from compressor is not applied to actuator:
The other front wheel should remain stationary while the wheel
pushed by hand is turning.
If the result is not satisfactory, inspect differential assembly. Re-
fer to ªINSPECTIONº of SECTION 7E in UNIT REPAIR MANU-
AL.
Page 514 of 801

YH4
GRAND
VITARA
7E-12 DIFFERENTIAL (FRONT)
1. Pump assembly
Air Pump Assembly
Removal / Installation
1) Disconnect air hoses and coupler from air pump assembly.
2) Remove pump assembly by removing bolts.
3) Reverse removal procedure for installation.
Tightening Torque
(a): 13 N
.m (1.3 kg-m, 9.5 lb-ft)
Inspection
1) Install special tool, voltmeter and battery to pump assembly as
shown in figure.
2) Tighten adjusting screw of special tool as far as it stops and
close its air check side opening by using fuel hose as blind plug.
Special Tool
(A): 09918-18110
3) Check that motor starts to run (a sound can be heard) when bat-
tery is connected and it stops when specified pressure is ob-
tained.
Check also for air leakage.
Specified pressure: 30.0 ± 45.0 kPa
(0.30 ± 0.45 kg / cm
2, 4.25 ± 6.40 psi)
4) Check that value indicated on voltmeter is within specification
shown below.
When motor is running: 0 ± 1 V
When motor has stopped running: 10 ± 14 V
CAUTION:
Do not run motor more than 10 seconds continuously to
prevent motor breakage.
Page 521 of 801
YH4
GRAND
VITARA
7F-2 DIFFERENTIAL (REAR)
DIAGNOSIS
ConditionPossible CauseCorrection
Gear noiseDeteriorated or water mixed lubricant
Inadequate or insufficient lubricant
Maladjusted backlash between bevel
pinion and gear
Improper tooth contact in the mesh between
bevel pinion and gear
Loose bevel gear securing bolts
Damaged side gear(s) or side pinion(s)Repair and replenish
Repair and replenish
Adjust as prescribed
Adjust or replace
Replace or retighten
Replace
Bearing noise(Constant noise) Deteriorated or water
mixed lubricant
(Constant noise) Inadequate or insufficient
lubricant
(Noise while coasting) Damaged bearing(s)
of bevel pinion
(Noise while turning) Damaged diff. side
bearing(s) or axle bearing(s)Repair and replenish
Repair and replenish
Replace
Replace
Oil leakageClogged breather plug
Worn or damaged oil seal
Excessive oilClean
Replace
Adjust oil level
Page 536 of 801

YH4
GRAND
VITARA
LIGHTING SYSTEM 8B-5
CLEARANCE, TAIL AND LICENCE PLATE LIGHTS
TroublePossible causeCorrection
All lights do not lightªTAILº fuse blown
Lighting switch faulty
Wiring or grounding faultyReplace fuse to check for short
Replace switch
Repair
Some lights do not light
upBulb(s) blown
Wiring or grounding faultyReplace bulb(s)
Repair
BACK-UP LIGHTS
TroublePossible causeCorrection
Back-up lights do not
lightªTURN / BACKº fuse blown (Hard Top Model)
ªTRNº fuse blown (Canvas Top Model)
Bulb blown
switch faulty
Wiring or grounding faultyReplace fuse to check for short
Replace bulb
Replace switch
Repair
Back-up lights remains
ONBack-up light switch or shift switch faulty
Wiring or grounding faultyReplace switch
Repair
BRAKE LIGHTS
TroublePossible causeCorrection
Brake lights do not light
upªSTOP / HORNº fuse blown (Hard Top
Model)
ªSTPº fuse blown (Canvas Top Model)
Bulb(s) blown
Brake light switch faulty
Wiring or grounding faultyReplace fuse to check for short
Replace bulb(s)
Adjust or replace switch
Repair
Brake lights stay onBrake light switch faultyAdjust or replace switch
Only one light does not
lightBulb blown
Wiring or grounding faultyReplace bulb
Repair
REAR FOG LIGHT (IF EQUIPPED)
TroublePossible causeCorrection
Rear fog light does not
come onªFOGº fuse blown
Rear fog light switch faulty
Lighting switch faulty
Wiring or grounding faulty
Bulb blownReplace fuse to check for short
Replace fog light switch
Replace switch
Repair
Replace bulb
INTERIOR LIGHTS
TroublePossible causeCorrection
Interior light (s) does (do)
not light upBulb(s) blown
ªDOMEº fuse blown (Hard Top Model)
ªDOMº fuse blown (Canvas Top Model)
Wiring or grounding faulty
Door switch faulty
Interior light switch faultyReplace bulb(s)
Replace fuse to check for short
Repair
Replace switch
Replace light assy
Front spot lights do not
light upBulb(s) blown
Wiring or grounding faulty
Spot light switch faultyReplace bulb(s)
Repair
Replace light assy
Page 538 of 801

YH4
GRAND
VITARA
LH steering vehicle shown
X-X:Horizontal center line of headlight bulbs
A-A:Vertical center line of left headlight bulb
B-B:Vertical center line of right headlight bulb1. Screen
2. For right / left adjustment
3. For up / down adjustment
(for vehicle without leveling system)
4. For up / down adjustment
(for vehicle with leveling system)
5. Headlight leveling actuatorHOT
SPOT LH. HEADLIGHT RH. HEADLIGHT
LIGHTING SYSTEM 8B-7
BULB REPLACEMENT
WARNING:
Don't touch when the bulb is hot.
1) Disconnect negative cable at battery.
2) Disconnect harness from bulb.
3) Remove socket cover and bulb.
4) Replace bulb and install in reverse removal procedure.
HEADLIGHT AIMING WITH SCREEN
NOTE:
Unless otherwise obligated by local regulations, adjust
headlight aiming according to following procedure.
After replacing headlight, be sure to perform its aiming.
When inspecting and adjusting headlight with leveling sys-
tem, make sure to set the leveling switch to ª0º position with
IG switch ON.
Before adjustment, make sure the following.
a) Place vehicle on a flat surface in front of blank wall as below
ahead of headlight surface.
Clearance ªaº: 10 m (32.8 ft)
b) Adjust air pressure of all tires to a specified value respectively.
c) Bounce vehicle body up and down by hand to stabilize suspen-
sion.
d) Carry out one driver aboard.
Driver's weight: 75 kg (165 lb)
Adjustment
1) Check to see if hot spot (high intensity zone) of each main (low)
beam axis falls as illustrated.
Clearance ªHº: Approx. 130 mm (5.15 in.)
2) If headlight aiming is not set properly, align it to specification by
adjusting aiming screw and aiming gear.
Page 622 of 801
YH4
GRAND
VITARA
1. Screws
1. Bolts
1. Door sealing cover
2. Adhesive1, (a)
9-4 BODY SERVICE
INSTALLATION
Reverse removal procedure to install door glass noting following
points:
Tighten glass attaching screws to specified torque. Tighten front
screw first, then rear screw.
Tightening Torque
(a): 2.5 N
.m (0.25 kg-m, 1.8 lb-ft)
When window becomes hard to raise and lower, adjust screws to
correct tilted glass as shown in figure.
Adjust equalizer of window regulator so that measurement A and
B are equal.
Secure door sealing cover with adhesive.
Page 627 of 801

YH4
GRAND
VITARA
1. Fastener
ªaº: Approx. 5mm (0.197 in.)
1. Mark mating marks
2. Glass
3. Body
4. Molding
1. Do not apply primer
2. Primer
3. Apply primer
4. Old adhesive
1. Molding
2. Glass
BODY SERVICE 9-9
INSTALLATION
1) Using cleaning solvent, clean windshield edge where wind-
shield glass is to be adhered. (Let it dry for more than 10 min-
utes.)
2) Install new glass stoppers (2pcs.) to lower side of windshield and
new fastener to body.
When reusing wind shield, install new fastener to wind shield.
3) To determine installing position of glass to body, position glass
against body so that clearance between upper end of glass and
body is about 5 mm (0.197 in.) and clearances between each
side end (right & left) of glass and body are even. Place glass so
that lug of fastener is matched with cut in body and fit fastener.
Then mark mating marks on glass and body as shown.
Upper clearance can be adjusted by moving stoppers position.
4) Clean contact surfaces of old adhesive, paint or bare metal thor-
oughly.
If surfaces of paint or bare metal come out, apply primer for body
with caution not to apply primer to surface of adhesive remaining
on body.
NOTE:
Be sure to refer to primer maker's instruction for proper
handling and drying time.
Do not touch body and old adhesive surfaces where glass
is to be adhered.
5) Install new molding to glass.
6) Clean glass surface to be adhered to body with clean cloth. If
cleaning solvent is used, let it dry for more than 10 minutes.
Cleaning Area
Distance from the edge of glass or molding
ªaº: 30 ± 50 mm (1.18 ± 1.97 in.)